In Reply to: Re: Come on! your birds cannot hear the ultrasonic range- posted by jwitzsch on January 4, 2005 at 14:07:30:
12,000 KHz should be 12,000 Hz. There must be some other explanation to what you have observed. Good Luck!
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Follow Ups
- no problem, by the way - - skramer 14:18:32 01/04/05 (0)